International Symposium on the Silurian-Devonian Boundary and the Stratigraphy of the Lower and Middle Devonian. (1971). Trudy Tretʹego Mezhdunarodnogo simpoziuma po granit͡se silura i devona i stratigrafii nizhnego i srednego devona: [V 2-kh t. "Nauka," Leningr. otd-nie.
Chicago Style (17th ed.) CitationInternational Symposium on the Silurian-Devonian Boundary and the Stratigraphy of the Lower and Middle Devonian. Trudy Tretʹego Mezhdunarodnogo Simpoziuma Po Granit͡se Silura I Devona I Stratigrafii Nizhnego I Srednego Devona: [V 2-kh T. Leningrad: "Nauka," Leningr. otd-nie, 1971.
MLA (8th ed.) CitationInternational Symposium on the Silurian-Devonian Boundary and the Stratigraphy of the Lower and Middle Devonian. Trudy Tretʹego Mezhdunarodnogo Simpoziuma Po Granit͡se Silura I Devona I Stratigrafii Nizhnego I Srednego Devona: [V 2-kh T. "Nauka," Leningr. otd-nie, 1971.